6664655453 has 8 divisors (see below), whose sum is σ = 6678409920. Its totient is φ = 6650915040.

The previous prime is 6664655447. The next prime is 6664655461. The reversal of 6664655453 is 3545564666.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6664655453 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6664655483) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1656278 + ... + 1660296.

It is an arithmetic number, because the mean of its divisors is an integer number (834801240).

Almost surely, 2^6664655453 is an apocalyptic number.

It is an amenable number.

6664655453 is a deficient number, since it is larger than the sum of its proper divisors (13754467).

6664655453 is a wasteful number, since it uses less digits than its factorization.

6664655453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7027.

The product of its digits is 7776000, while the sum is 50.

The square root of 6664655453 is about 81637.3410456269. The cubic root of 6664655453 is about 1881.8827762743.

The spelling of 6664655453 in words is "six billion, six hundred sixty-four million, six hundred fifty-five thousand, four hundred fifty-three".